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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 8, Iss. 4 — Apr. 1, 2010
  • pp: 411–413

High energy optically pumped NH3 terahertz laser with simple cavity

Liang Miao, Duluo Zuo, Zhixian Jiu, Zuhai Cheng, Chunchao Qi, and Junzhu Wu  »View Author Affiliations


Chinese Optics Letters, Vol. 8, Issue 4, pp. 411-413 (2010)


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Abstract

A high energy pulsed terahertz (THz) laser is studied experimentally. The laser cavity simply consists of a quartz glass waveguide, a coated GaAs input window, and a crystal quartz output window. NH<sub>3</sub> is filled in the cavity as gain medium, and pumped by an 8-J line-tunable transversely excited atmospheric (TEA) CO<sub>2</sub> laser. When 9R(16) transition acts as the pump line, 55.6-mJ THz radiation (90 \mu m) is obtained at 730-Pa NH<sub>3</sub> pressure. The corresponding conversion efficiency is 13.54%. Energy and optimal pressure of amplified spontaneous emission and laser oscillation are compared.

© 2010 Chinese Optics Letters

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.4130) Lasers and laser optics : Molecular gas lasers
(140.6630) Lasers and laser optics : Superradiance, superfluorescence

Citation
Liang Miao, Duluo Zuo, Zhixian Jiu, Zuhai Cheng, Chunchao Qi, and Junzhu Wu, "High energy optically pumped NH3 terahertz laser with simple cavity," Chin. Opt. Lett. 8, 411-413 (2010)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-8-4-411


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